Exam 6: Communications, Networks, and Cyberthreats: the Wired and Wireless World

A(n)________ is an interface (linking device)used to connect the same types of networks,whereas a(n)________ is an interface permitting communications between dissimilar networks.

A common connection device that connects computers to a network and that sends messages (checks packets)between sender and receiver nodes is called a ________.

Telephones have always been digital devices.

_________ is an international standard widely adopted in the U.S.A.,Europe,and Asia that supports fast cellphone data transfer rate; this standard has not been adopted yet by all carriers.

Peer-to-peer networks are less stable than client-server networks because in the former certain shared resources reside on each user's machine.

Ethernet is a long-distance wireless communications connection.

Private networks that use a public network,usually the Internet,to connect remote sites are called ________.

A type of wired communications technology used to connect equipment in a home network is the following:

A communications medium is a channel; there are three types of wired communications media.The one consisting of two strands of insulated copper wire,used by tradition telephone systems,is known as ________.

If you have one computer,you need firewall hardware; if you have more than one (networked)computer,then a software firewall should be used.

What is the primary purpose of the modem?

A gateway is an interface device permitting communication between similar networks.

To create larger networks,a bridge connects the same types of networks,and a ________ connects dissimilar networks.

Client / server networks and peer-to-peer networks are the same except that the first type of network uses a mainframe and the second type uses only microcomputers.

A LAN is a type of network that covers a wide geographical area.

What short-distance wireless standard is used to link cell phones,computers,and peripherals at distances of up to about 33 feet?

Public wireless access points are called _________.

Telecommuting means using a computer and networks to work from ________; telework means working from ________.

A computer that acts like a disk drive,storing the programs and data files shared by users on a LAN,is the ________ server.

What are the four types of cyberintruders?